Improve inclusive language used in our code

Luke Duncalferequested to merge
ld-improve-inclusive-language into master

What does this MR do and why?

This MR improves inclusive language used in our code.

There should be no functional changes.

MR acceptance checklist

This checklist encourages us to confirm any changes have been analyzed to reduce risks in quality, performance, reliability, security, and maintainability.

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